FRT-MR3 Flat for Sale | Rare Breed HK MR223 / MR556 FRT

Name: FRT-MR3™ (FLAT)
Brand: Rare Breed Triggers
SKU: frt-mr3-flat
Price: 367.50 USD
Availability: InStock

FRT-MR3™ (FLAT)

The flat-face FRT-MR3 — Rare Breed's forced reset trigger for the HK MR223 / MR556, with a flat trigger shoe.

$525.00$367.5030% OFF

Free US shipping · ships in 1–2 business days · tracked

Buy now — $367.50

Genuine Rare Breed®Secure checkoutCard or crypto

Overview

The FRT-MR3 (Flat) is the flat-faced version of Rare Breed's HK MR223 / MR556 forced reset trigger. Same semi-automatic forced-reset function as the curved MR3, with a flat trigger face for a consistent finger position.

Genuine Rare Breed Triggers® for the HK platform. Confirm your exact model before ordering.

Brand	Rare Breed Triggers
Model	FRT-MR3 (Flat)
Platform	HK MR223 / MR556
Type	Forced Reset Trigger (semi-automatic)
Trigger face	Flat
Condition	New
Origin	Made in USA

Brand

Rare Breed Triggers

Model

FRT-MR3 (Flat)

Platform

HK MR223 / MR556

Type

Forced Reset Trigger (semi-automatic)

Trigger face

Flat

Condition

New

Origin

Made in USA

Order

FRT-MR3™ (FLAT)

In stock · ships in 1–2 business days

$525.00$367.50

Quantity

Email (receipt & tracking) *

First name *

Last name *

Shipping address *

City *

ZIP *

State * Payment method

Total (shipping included) $367.50

Card payment on a secure, encrypted page. We never see or store your card details.

Frequently asked questions

Curved or flat MR3 — which should I get?

Function is identical; pick flat for a flat trigger shoe or curved for a traditional face.

What platform is this for?

The HK MR223 / MR556 — not a standard AR-15.

Is it legal?

Federally semi-automatic per the 2025 settlement; restricted in some states — verify yours.

FRT-MR3™ (FLAT)

Overview

Specifications

Order

Frequently asked questions

More from Rare Breed Triggers

FRT-15L3®

FRT-15C3®

FRT-MR3™